Papers on the cotton boll weevil and related and associated insects . Fig. 8.—Apiomerus spissipes: a, madult, side view; d, same fromenlarged (original). summer 10 to 12 daysdays were required. The collar is shining white. The dimen-follows: Width at narrowest part—justbelow collar— mm.;greatest width, ; length below col-lar, mm.; length ofcollar, mm.; totallength, mm. Thewidth of the collar variesfrom slightly less thanthe greatest width of theegg to slightly more. Incubation. —Incuba-tion varies slightly inthe time required in dif-ferent egg , in May, unde
Papers on the cotton boll weevil and related and associated insects . Fig. 8.—Apiomerus spissipes: a, madult, side view; d, same fromenlarged (original). summer 10 to 12 daysdays were required. The collar is shining white. The dimen-follows: Width at narrowest part—justbelow collar— mm.;greatest width, ; length below col-lar, mm.; length ofcollar, mm.; totallength, mm. Thewidth of the collar variesfrom slightly less thanthe greatest width of theegg to slightly more. Incubation. —Incuba-tion varies slightly inthe time required in dif-ferent egg , in May, underconditions exactly thesame, incubation re-quired 12 days in oneinstance and 16 inanother. During mid-were sufficient. Later, in the fall, 14 to 16 rnph, 5th instar; b, egg mass; eabove, a, c, d, natural .size; b The insects preyed upon in the laboratory embraced the ordersOrthoptera, Heraiptera, Lepidoptera, Diptera, and process of feeding is a long oneand varies with the size of the prey. Ingeneral the reduviids lie in wait in analert attitude for the approach of aninsect and then spring upon it, butf requently they take the initiative and flyor run toward an insect. The insect fedupon is not left until all the juices aresucked from its bod}\ Sometimes thistakes only a half hour, at other timesthe reduviid feeds for one or two weevils fed upon by Apiomerusspissipes are often as dry and crushalmost as easily between the fingers asdo pinned specimens. The first punc-ture by the beak of spissipes is gen-erally fatal. In the case of boll weevils, upon which spissipes fre-quently fed, the weevil made only a few spasmodic movements after
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